@article{vonSeckendorffTimmermanKrameretal.2004,
  author    = {V. von Seckendorff and Martin Jan Timmerman and W. Kramer and P. Wrobel},
  title     = {New 40Ar/39Ar ages and geochemistry of late Carboniferous to early Permian lamprophyres and related volcanic rocks in the Saxothuringian Zone of the Variscan Orogen (Germany)},
  year      = {2004},
}